Home / 144,581,528.30-217,040,254.05-87,138,661.10

Finding the Fourth Proportional to 144,581,528.30, 217,040,254.05 and 87,138,661.10

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Solution

The fourth proportional to 144,581,528.30, 217,040,254.05 and 87,138,661.10 is: 130,809,221.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,581,528.30 : 217,040,254.05 = 87,138,661.10 : x
  2. Step 2: Convert to fraction form
    144,581,528.30/217,040,254.05 = 87,138,661.10/x
  3. Step 3: Cross multiply
    144,581,528.30x = 217,040,254.05 × 87,138,661.10
  4. Step 4: Simplify right side
    144,581,528.30x = 18,912,597,142,720,852
  5. Step 5: Solve for x
    x = 18,912,597,142,720,852/144,581,528.30
  6. Step 6: Final answer
    x = 130,809,221.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.